| Elements of the Periodic Table | 0 | - | 5.00 | 2,137,881 |
| Speed Symbol by Element | 0 | - | 4.92 | 100,000 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 91,113 |
| Noble Gases | 0 | - | 4.89 | 74,910 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 62,169 |
| Periodic Table Symbols Quiz | 0 | - | 4.97 | 65,629 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 77,956 |
| One Letter Periodic Table Symbols - Sudden Death | 0 | - | 4.90 | 42,831 |
| Elemental Words | 0 | - | 4.96 | 50,750 |
| Metals of Antiquity | 0 | - | 4.93 | 90,725 |
| Elements - Sudden Death | 0 | - | 4.92 | 108,095 |
| First Twenty Elements - Sudden Death | 0 | - | 4.81 | 29,432 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.70 | 181,117 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.79 | 60,971 |
| International Scientific Units | 0 | - | 4.96 | 149,937 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 60,431 |
| Random Symbol to Element | 0 | - | 4.88 | 89,789 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,574 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 11,409 |
| Click the Chemical Element | 0 | - | 4.96 | 75,520 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 147,280 |
| Name the Virus | 0 | - | 4.87 | 74,861 |
| Elements by Picture | 0 | - | 4.29 | 67,804 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 77,200 |
| Famous Scientists | 0 | - | 4.56 | 41,640 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,057 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 99,269 |
| Name a Valid Element | 0 | - | 4.64 | 67,964 |
| Scientific Names | 0 | - | 4.32 | 77,147 |
| Things Named For People #3 - Science | 0 | - | 4.84 | 52,184 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,161 |
| Most Guessed Elements on JetPunk | 0 | - | 4.55 | 47,649 |
| Element... or Pokémon? | 0 | - | 4.98 | 124,580 |
| Body Parts - Sudden Death | 0 | - | 4.87 | 52,999 |
| Bones - Sudden Death | 0 | - | 4.93 | 42,481 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 84,245 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.75 | 68,984 |
| Category Elimination - Elements | 0 | - | 4.57 | 51,672 |
| Body Part Cliches | 0 | - | 4.43 | 121,778 |
| Medical Conditions Quiz | 0 | - | 4.78 | 121,121 |
| Simple Machines Quiz | 0 | - | 4.35 | 8,854 |
| Astronomy Quiz | 0 | - | 4.89 | 78,347 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 129,784 |
| Solar System Trivia | 0 | - | 4.93 | 43,520 |
| Click the Planet | 0 | - | 4.92 | 63,799 |
| Science Multiple Choice #2 | 0 | - | 4.39 | 35,431 |
| Science Multiple Choice #3 | 0 | - | 4.37 | 33,401 |
| Environmental Issues | 0 | - | 4.53 | 26,341 |
| A Quiz About Diamonds | 0 | - | 4.63 | 10,856 |
| Science General Knowledge #1 | 0 | - | 4.52 | 158,120 |
| Science General Knowledge #2 | 0 | - | 4.45 | 105,606 |
| Science General Knowledge #3 | 0 | - | 4.54 | 95,707 |
| Science Vocabulary #2 | 0 | - | 4.52 | 57,846 |
| Word Chain - Science | 0 | - | 4.58 | 53,199 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 37,275 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,067,532 |
| Name a Valid Answer - Science | 0 | - | 4.78 | 37,777 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,423 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 34,198 |
| The Sun Quiz | 0 | - | 4.93 | 32,297 |
| First Names of Scientists | 0 | - | 4.50 | 55,280 |
| Groups of Two - Science | 0 | - | 4.25 | 47,555 |
| Science Vocabulary #1 | 0 | - | 4.33 | 69,840 |
| Science Vocabulary #3 | 0 | - | 4.31 | 50,559 |
| Science Decoder | 0 | - | 4.54 | 28,275 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,559 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 27,424 |
| Science True or False | 0 | - | 4.34 | 38,920 |
| Medical Acronyms | 0 | - | 4.42 | 93,432 |
| Medical Vocabulary | 0 | - | 4.54 | 57,063 |
| Citrus Fruits | 0 | - | 3.62 | 41,550 |
| "Ologies" Quiz | 0 | - | 4.33 | 94,271 |
| Albert Einstein Quiz | 0 | - | 4.55 | 17,993 |
| Fish... or Not a Fish? | 0 | - | 4.42 | 41,981 |
| Brightest Objects in the Sky | 0 | - | 4.41 | 17,044 |
| Planets By Picture Quiz | 0 | - | 4.50 | 53,670 |
| Planets - Multiple Choice | 0 | - | 4.43 | 51,188 |
| Body Part Words Quiz | 0 | - | 4.44 | 143,288 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,145 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 173,608 |
| Three Letter Body Parts | 0 | - | 4.39 | 203,125 |
| Human Body A-Z | 0 | - | 4.50 | 125,508 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 85,543 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 114,866 |
| Medical Specialties | 0 | - | 4.30 | 88,913 |
| The Diseases They Had | 0 | - | 4.15 | 13,664 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 46,120 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.23 | 20,007 |
| Birthstones Quiz | 0 | - | 4.41 | 79,687 |
| Astronomy Decoder | 0 | - | 4.52 | 37,000 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,035 |
| The Mars Quiz | 0 | - | 4.54 | 18,197 |
| The Saturn Quiz | 0 | - | 4.54 | 11,249 |
| Dumb it Down Doc | 0 | - | 4.13 | 63,878 |
| The Pluto Quiz | 0 | - | 4.63 | 9,480 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 216,065 |
| Name the Constellations Quiz | 0 | - | 4.58 | 43,553 |
| Astronomy True or False | 0 | - | 4.37 | 35,513 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 211,219 |
| Most Common Body Part Words | 0 | - | 3.92 | 31,057 |
| Body Parts - No Vowels | 0 | - | 4.14 | 24,372 |
| The Venus Quiz | 0 | - | 4.15 | 6,708 |
| Countries with the Most Sunlight Per Square Meter | 0 | - | 4.37 | 15,978 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,325 |
| Animals by Skeleton Image | 0 | - | 4.81 | 43,731 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 13,832 |
| Countries with the Most HIV | 0 | - | 4.47 | 43,889 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 42,966 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 22,465 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 108,484 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 48,891 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.88 | 62,440 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 33,894 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 58,971 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,164 |
| Worst Plastic Polluting Countries | 0 | - | 4.53 | 64,615 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 40,085 |
| Countries with the Most Forest | 0 | - | 4.88 | 144,009 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.30 | 34,587 |
| Least-Forested Countries | 0 | - | 4.52 | 63,799 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.61 | 62,208 |
| Countries with the Most Forest A-Z | 0 | - | 4.61 | 54,031 |
| Most Forested European Countries | 0 | - | 4.78 | 73,214 |
| Least Forested European Countries | 0 | - | 4.27 | 52,976 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 63,367 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.57 | 37,066 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 45,313 |
| Tropical Rainforest Countries | 0 | - | 4.64 | 80,561 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 54,493 |
| Countries with Glaciers | 0 | - | 4.97 | 102,315 |
| Northernmost Countries Without Glaciers | 0 | - | 4.63 | 26,304 |
| U.S. States with Glaciers | 0 | - | 4.59 | 23,969 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 33,643 |
| Elements Named for Countries | 0 | - | 4.51 | 22,978 |
